exact formula is inside /lib/skybright.cal if this can help you to find the name.
{ RCSid: $Id$ } { Sky brightness function for sunny and cloudy skies.
Additional arguments required for calculation of skybright:
A1 - 1 for CIE clear, 2 for CIE overcast, 3 for uniform, 4 for CIE intermediate A2 - zenith brightness A3 - ground plane brightness A4 - normalization factor based on sun direction A5,A6,A7 - sun direction }
cosgamma = Dx*A5 + Dy*A6 + Dz*A7;
gamma = Acos(cosgamma); { angle from sun to this point in sky }
zt = Acos(A7); { angle from zenith to sun }
eta = Acos(Dz); { angle from zenith to this point in sky }
wmean(a, x, b, y) : (a*x + b*y) / (a + b);
skybr = wmean((Dz+1.01)^10, select(A1, sunnysky, cloudysky, unifsky, intersky), (Dz+1.01)^-10, A3);
sunnysky = A2 * (.91 + 10*exp(-3*gamma) + .45*cosgamma*cosgamma) * if( Dz - .01, 1.0 - exp(-.32/Dz), 1.0) / A4;
cloudysky = A2 * (1 + 2*Dz)/3;
unifsky = A2;
intersky = A2 * ( (1.35*sin(5.631-3.59*eta)+3.12)*sin(4.396-2.6*zt) + 6.37 - eta ) / 2.326 * exp(gamma*-.563*((2.629-eta)*(1.562-zt)+.812)) / A4;
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tecture. Hochbau | University of Innsbruck . A simple random, but at the same time organised growth routine. 5 iterations for this image.
Link to the course here:
http://www.exparch.at/index.php?option=com_content&task=view&id=1054&Itemid=87
View full size...as per Pieter's suggestion…
tting masks but haven't found what I'm looking for, ideally I'd like to do it that way rather than plug in more bits as it's getting clunky.
Thanks in advance!
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Hi
I'm trying to write a simple script to offset a curve muliptle times (using a 'for loop') but I don't know the vb dotNet syntax. I'm sure lines 84, 88 & 89 are wrong. Any ideas.
Thanks. P
Added by Paul Wintour at 8:25am on September 28, 2010
k. I believe this is the n1 item on the list and it will be fixed until the public release coming shortly. Hang in there!
Check: https://github.com/mostaphaRoudsari/Butterfly/issues/43
In the meantime, please let us know of the values you had to change manually in controlDict and fvSolution. Was that due to wrong values set from BF or was it because they weren't updated through BF?
Kind regards,
Theodore.…
e sideline on that comparison. But my interest is within the thermal investigations in big indoor spaces/semi-outdoor spaces as I am studying temperature distributions in atria. So it was regarding those kind of comparisons.
I sure hope I have time within my project to test out BF and hopefully compare to Ansys. I'd btw be using the k-w SST solver in Ansys. Which solvers are available in BF for indoor studies?
- Lasse…
by its own tangent vector on the curve... and this happens to the last item. Here's the algorithm:
B0 ----> B1
B1 ----> B2
B2 ----> B3
B3 ----> B4
...
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rence not set to an instance of an object. (line: 80)
Both .dlls appear to have been successfully imported.
Thanks in advance,
Charles
RStatSystem rs = ri as RStatSystem;
List<Line> slines = new List<Line>();
foreach(RStatBeam b0 in rs.Beams) { <------ line 80
if (b0.StiffnessMultiplier < 0.3) continue;
slines.Add(new Line(b0.P0.ToPoint3d(), b0.P1.ToPoint3d())); }
A = slines;
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